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公开(公告)号：US20240060938A1
公开(公告)日：2024-02-22
申请号：US18229331
申请日：2023-08-02
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
发明人： Tomohiro KOYAMA , Ikuo IHARA , Shinji WADA
CPC分类号： G01N29/2437 , G01N29/07 , G01N29/228
摘要： An ultrasonic inspection device includes: a longitudinal ultrasonic sensor configured to emit and receive a longitudinal ultrasonic wave; and an ultrasonic transducer unit made of metal and having the shape of a polyhedron. The ultrasonic transducer unit includes: an output surface configured to be disposed facing an object to be inspected; an input surface on which the longitudinal ultrasonic sensor is disposed; and a conversion surface configured to, when the longitudinal ultrasonic wave input through the input surface is reflected by the conversion surface, convert the longitudinal ultrasonic wave into a transverse ultrasonic wave such that the transverse ultrasonic wave propagates toward the output surface, the conversion surface being tilted at a predetermined angle with respect to an in-plane direction of the output surface. Thermal conductivity of the ultrasonic transducer unit is lower than thermal conductivity of the object to be inspected.
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公开(公告)号：US20230286039A1
公开(公告)日：2023-09-14
申请号：US18171755
申请日：2023-02-21
发明人： Tomohiro KOYAMA
CPC分类号： B22D17/32 , G01M3/3236 , G01M3/34 , B22D17/04
摘要： The die casting machine includes: a sleeve with tubular shape, the sleeve communicating with inner space of a die casting mold; a plunger disposed in the sleeve, the plunger moving along a central axis of the sleeve; a sensor for measuring pressure of the inner space of the die casting mold; and a controller programmed to perform an airtight inspection of the die casting mold, during outside a molding period of a die casting product by the die casting machine; in the airtight inspection, wherein the controller is programmed to: pump gas in the sleeve to the inner space, or suck gas in the inner space into the sleeve, by moving the plunger in a clamping state, wherein the clamping state is a state of the die casting mold being clamped; obtain the pressure of the inner space from the sensor; determine an abnormality in airtightness of the die casting mold using measurement result of the pressure of the inner space.
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